The construction arm of L&T has secured a Large order for its Heavy Civil Infrastructure enterprise from Rail Vikas Nigam Ltd (RVNL) for Package four of
the New Broad-Gauge Line between Rishikesh and Karanprayag within the State of Uttarakhand, India. The scope of the assignment includes construction of Tunnels, Formation, Construction Shaft, and different Ancillary works from Chainage forty seven+360 to 63+117 Km among Rishikesh and Karanprayag.

The challenge entails the construction of 14.577 Km up line and 13.123 Km down line tunnel with embankments of approximately 800 meters at both ends. Out of 14.577 Km and thirteen.123 Km of tunnel, 10.Forty nine Km and 10.317 Km of tunnel could be excavated the usage of new difficult rock Tunnel Boring Machines (TBMs) of diameter 9.1 meters and the stability using New Austrian Tunnel Method (NATM). The scope additionally consists of construction of an Ellipsoidal cum Ventilation Shaft inside the finished pass-section of 79 rectangular meters and intensity of 32 meters.

This may be the most important TBM to be deployed in the Himalayan region in India and the TBM bored tunnel period of 20.807 Km can be the longest for any undertaking within the Himalayan location. The entire assignment is to be completed within a stringent timeline of 60 months.